JPH02203716A - Apparatus for storing perishables - Google Patents
Apparatus for storing perishablesInfo
- Publication number
- JPH02203716A JPH02203716A JP1025041A JP2504189A JPH02203716A JP H02203716 A JPH02203716 A JP H02203716A JP 1025041 A JP1025041 A JP 1025041A JP 2504189 A JP2504189 A JP 2504189A JP H02203716 A JPH02203716 A JP H02203716A
- Authority
- JP
- Japan
- Prior art keywords
- storage
- gas
- carbon dioxide
- pipe
- storage chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003860 storage Methods 0.000 claims abstract description 103
- 239000000463 material Substances 0.000 claims abstract description 8
- 230000035699 permeability Effects 0.000 claims abstract description 8
- 235000013305 food Nutrition 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 90
- 239000007789 gas Substances 0.000 description 67
- 229910002092 carbon dioxide Inorganic materials 0.000 description 48
- 239000001569 carbon dioxide Substances 0.000 description 39
- 238000002485 combustion reaction Methods 0.000 description 34
- 239000000567 combustion gas Substances 0.000 description 21
- 238000001179 sorption measurement Methods 0.000 description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 239000001301 oxygen Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 10
- 239000003463 adsorbent Substances 0.000 description 8
- 239000004449 solid propellant Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 239000003054 catalyst Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Storage Of Harvested Produce (AREA)
- Storage Of Fruits Or Vegetables (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、野菜、果実等の生鮮物を生産地あるいは流通
段階等において長期間の貯蔵を可能とする生鮮物貯蔵装
置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a fresh produce storage device that allows fresh produce such as vegetables and fruits to be stored for a long period of time at the production site or at the distribution stage.
従来の技術
生鮮物を貯蔵する手段としては冷蔵貯蔵が一般的である
が、これに加えてよシ長期にわたる貯蔵手段として、貯
蔵庫内の空気成分を変える貯蔵がある。つまシ、貯蔵庫
内の酸素（０２）濃度を減少せしめ、炭酸ガス（Ｃ０２
）濃度を増加せしめることで生鮮物の呼吸作用を抑制し
、また微生物による変質１分解や酸化等の化学反応も防
止することができることが知られている。BACKGROUND OF THE INVENTION Refrigerated storage is a common means of storing perishables, but in addition to this, another long-term storage method is storage that changes the air composition within the storage room. It reduces the concentration of oxygen (02) in the storage chamber and releases carbon dioxide (C02).
) It is known that by increasing the concentration, it is possible to suppress the respiration of fresh foods and also to prevent chemical reactions such as decomposition and oxidation caused by microorganisms.
以下図面を参照しながら、上述した従来の生鮮物貯蔵装
置の一例について説明する。An example of the above-mentioned conventional fresh food storage device will be described below with reference to the drawings.
第３図は従来の生鮮物貯蔵装置の系統図を示すものであ
る。１は貯蔵庫であシ、蒸発器２、コンデンシングユニ
ット３から成る冷却装置４を設けテイル。５はプロパン
ガスボンベであシ、炭酸ガス発生装置６で前記貯蔵庫１
よシ導入管７で導入した空気を供して燃焼させＣａ Ｈ
ｓ ＋ ｓ Ｏ２→３ＣＯ２＋４Ｈ２０＋５３１の反応
で発生した燃焼排ガス、すなわち炭酸ガスＣｏ２を排出
管８で前記貯蔵庫１に排出している。９は炭酸ガス吸着
装置で、前記貯蔵庫１よシ導入管１０で導入し、過剰の
炭酸ガヌＣ０２を吸着した後、排出管１１で貯蔵庫１に
戻している。１２はガスモニターであり貯蔵庫１内のガ
ス濃度を検知して炭酸ガス発生装置６及び炭酸ガス吸着
装置９を適時コントロールしている。FIG. 3 shows a system diagram of a conventional fresh food storage device. 1 is a storage compartment, and a cooling device 4 consisting of an evaporator 2 and a condensing unit 3 is provided. 5 is a propane gas cylinder, and a carbon dioxide gas generator 6 is connected to the storage 1.
The air introduced through the intake pipe 7 is used to burn CaH.
The combustion exhaust gas generated by the reaction s + s O2→3CO2+4H20+531, that is, carbon dioxide gas Co2, is discharged into the storage 1 through the discharge pipe 8. Reference numeral 9 denotes a carbon dioxide adsorption device, which is introduced into the storage 1 through an inlet pipe 10, and after adsorbing excess carbon dioxide C02, is returned to the storage 1 through a discharge pipe 11. A gas monitor 12 detects the gas concentration in the storage 1 and controls the carbon dioxide gas generator 6 and the carbon dioxide adsorption device 9 in a timely manner.
発明が解決しようとする課題
しかしながら、上記のような構成では、貯蔵庫１内に貯
蔵する生鮮物の量によって所定のガス濃度に到達する時
間が異なってくる。貯蔵量が少ない時所定のガス濃度に
到達するのに非常に長くかかるため、呼吸作用の速い貯
蔵物の場合その間に鮮度が劣化してしまうという問題点
を有していた。Problems to be Solved by the Invention However, in the above configuration, the time required to reach a predetermined gas concentration differs depending on the amount of perishables stored in the storage 1. When the amount of stored gas is small, it takes a very long time to reach a predetermined gas concentration, so there is a problem in that the freshness of stored items that respire quickly deteriorates during that time.
また、貯蔵庫内の圧力は冷却装置４の運転・停止によっ
て負圧・正圧の変動を繰返す。この圧力変動によって貯
蔵庫１の気密度は経年的に劣化するという問題点を有し
ていた。Further, the pressure inside the storage chamber repeatedly changes between negative pressure and positive pressure depending on whether the cooling device 4 is operated or stopped. This pressure fluctuation has caused a problem in that the airtightness of the storage 1 deteriorates over time.
本発明は、上記課題に鑑み、貯蔵庫１内に貯蔵する生鮮
物の量に依存することなく一定時間後に所定のガス濃度
に到達し、かつ、貯蔵庫１の気密度は経年的に変化せず
保持できる生鮮物貯蔵装置を提供するものである。In view of the above problems, the present invention aims to reach a predetermined gas concentration after a certain period of time without depending on the amount of perishables stored in the storage 1, and maintain the airtightness of the storage 1 without changing over time. This provides a fresh food storage device that can
課題を解決するための手段
上記問題点を解決するため本発明の生鮮物貯蔵装置は貯
蔵庫内に設け、気体透過性の低い材料で形成し、かつ、
一端を前記貯蔵庫の壁面を貫通させ、外気に開口させた
伸縮可能な気密袋を備えたものである。Means for Solving the Problems In order to solve the above problems, the perishables storage device of the present invention is provided in a storage, is made of a material with low gas permeability, and
The bag is equipped with an expandable and retractable airtight bag whose one end penetrates the wall of the storage and opens to the outside air.
作 用
本発明は上記した構成によって貯蔵量に応じて、貯蔵庫
の空間容量を減少させる気体透過性の低い材料で形成し
た伸縮可能な気密袋を設けることによって、貯蔵庫内の
ガス置換する容積を一定にすることができ、生鮮物の貯
蔵量に依存することなく一定時間後に所定のガス濃度に
到達でき、かつ、貯蔵庫内の冷却装置の運転・停止によ
って生ずる圧力変動に対し気密袋が伸縮することによっ
て、貯蔵庫内の圧力は一定に保持され貯蔵庫の気密度の
経年劣化は防止できることとなる。Function The present invention maintains a constant volume for gas replacement in the storage by providing an expandable airtight bag made of a material with low gas permeability that reduces the space capacity of the storage depending on the storage amount according to the above-described configuration. It is possible to reach a predetermined gas concentration after a certain period of time without depending on the amount of perishables stored, and the airtight bag can expand and contract in response to pressure fluctuations caused by the operation and stopping of the cooling device in the storage. This keeps the pressure inside the storage constant and prevents the airtightness of the storage from deteriorating over time.
実施例
以下本発明の一実施例の生鮮物貯蔵装置について図面を
参照しながら説明する。EXAMPLE Hereinafter, a fresh food storage apparatus according to an embodiment of the present invention will be described with reference to the drawings.
第１図は、本発明の一実施例における生鮮物貯蔵装置の
構成を示すものである。FIG. 1 shows the configuration of a fresh produce storage device in one embodiment of the present invention.
第１図において１は生鮮物を貯蔵するプレファブ冷蔵庫
の如き貯蔵庫であυ、圧縮機２、凝縮器３、蒸発器４、
送風機６，６よ構成る冷却装置７を上部に載架している
。前記貯蔵庫１には以下の構成からなるガス置換装置１
を接続している。前記ガス置換装置１には庫内に炭酸ガ
スＣ０２を充填するための炭酸ガス発生装置８と、燃焼
ガスの中の過剰な炭酸ガスＣＯ２を吸着して除去する炭
酸ガス吸着装置９が接続されている。炭酸ガス発生装置
８は、貯蔵庫１内の空気を導入する導入管１ｏと、ここ
で発生した燃焼ガスを炭酸ガス吸着装置９に導く、連結
管１１との間に構成され、燃焼炉１２及び燃焼ガスの冷
却器１３で構成されている。１４は送風機であシ、冷却
器１３と炭酸ガス吸着装置９との間の連結管１１に設け
、導入管１０よシ貯蔵庫１内の空気を燃焼炉１２に導き
、更に燃焼炉１２で発生した燃焼ガスを燃焼炉１２の下
流に設けた触媒１２ａを通して一酸化炭素等の不完全燃
焼ガスを浄化し、更に冷却器１３で冷却した後、連結管
１１により炭酸ガス吸着装置９に導く。燃焼炉１２は、
内面に断熱管１６を備えた内ケーシング１６と、燃焼２
次空気を供給するために内ケーシング１６との間に風路
１７を形成した外ケーシング１８と、断熱管１６内で固
形燃料１９を載置する火格子２ｏと、燃焼空気を加熱し
て固形燃料１９を燃焼させるだめの着火用ヒータ２１よ
多構成されている。固形燃料１９は、純度の高い炭素で
あり燃焼によシＣ＋０２十Ｎ２→Ｃ０２十Ｎ２ の反
応で、燃焼ガスは炭酸ガスＣＯ２と窒素（Ｎ２）になる
。In Fig. 1, 1 is a storage such as a prefabricated refrigerator for storing perishables, a compressor 2, a condenser 3, an evaporator 4,
A cooling device 7 made up of blowers 6, 6 is mounted on the top. The storage 1 includes a gas replacement device 1 having the following configuration.
are connected. Connected to the gas replacement device 1 are a carbon dioxide gas generating device 8 for filling the interior of the refrigerator with carbon dioxide gas CO2, and a carbon dioxide gas adsorption device 9 for adsorbing and removing excess carbon dioxide gas CO2 in the combustion gas. There is. The carbon dioxide gas generator 8 is configured between an introduction pipe 1o that introduces air in the storage 1 and a connecting pipe 11 that leads the combustion gas generated here to the carbon dioxide adsorption device 9, and is connected to a combustion furnace 12 and a combustion chamber 12. It consists of a gas cooler 13. Reference numeral 14 is a blower, which is installed in the connecting pipe 11 between the cooler 13 and the carbon dioxide adsorption device 9, guides the air in the storage 1 through the introduction pipe 10 to the combustion furnace 12, and further removes the air generated in the combustion furnace 12. The combustion gas passes through a catalyst 12a provided downstream of the combustion furnace 12 to purify incomplete combustion gases such as carbon monoxide, is further cooled by a cooler 13, and is then led to a carbon dioxide adsorption device 9 through a connecting pipe 11. The combustion furnace 12 is
An inner casing 16 with a heat insulating pipe 16 on the inner surface and a combustion 2
An outer casing 18 with an air passage 17 formed between it and the inner casing 16 for supplying air, a grate 2o on which solid fuel 19 is placed within the heat insulating pipe 16, and a solid fuel by heating the combustion air. The ignition heater 21 is configured to burn the ignition heater 19. The solid fuel 19 is highly pure carbon and is combusted by the reaction C+020N2→C020N2, and the combustion gas becomes carbon dioxide gas CO2 and nitrogen (N2).
一方炭酸ガス吸着装置９は、燃焼ガスの中の過剰な炭酸
ガヌＣＯ２を吸着し、貯蔵庫１外に排出するためのもの
である。２基の吸着器２２．２３に対し、燃焼ガスが交
互に循環するように導入管２４．２５、排出管２６．２
７、切替バルブ２８゜２９で構成されている。吸着器２
２．２３内には、吸着材３０．３１が充填されておシ、
炭酸ガスＣ０２を吸着し、吸着能力が低下すると、送風
機３２によって外気を切替バルブ３３、排出管２６゜２
７に接続している導入管３４あるいは３６を通して吸着
器２２あるいは２３に送風し、炭酸ガスを脱着し、導入
管２４あるいは２５に接続している排出管３６，３７、
切替パルプ３８を通して排気管３９より大気に排気され
るよう構成している。On the other hand, the carbon dioxide adsorption device 9 is for adsorbing excess CO2 in the combustion gas and discharging it to the outside of the storage 1. An inlet pipe 24.25 and an exhaust pipe 26.2 are connected to the two adsorbers 22,23 so that the combustion gas alternately circulates.
7. Consists of switching valves 28° and 29. Adsorber 2
2.23 is filled with adsorbent 30.31,
When carbon dioxide gas C02 is adsorbed and the adsorption capacity decreases, the blower 32 switches the outside air to the valve 33 and the exhaust pipe 26゜2.
Air is blown to the adsorber 22 or 23 through the inlet pipe 34 or 36 connected to 7 to desorb carbon dioxide gas, and the discharge pipe 36, 37 connected to the inlet pipe 24 or 25,
It is configured to be exhausted to the atmosphere through an exhaust pipe 39 through a switching pulp 38.
例えば、吸着器２２が吸着作用、吸着器２３が脱着作用
をしている時は、切替バルブ２８ 、２９は、燃焼ガヌ
が導入管２４、吸着器２２、排出管２６を通過して流れ
る方向に開いておシ、また、切替バルブ３３．３８は、
外気が送風機３２によって、導入管３６、吸着器２３、
排出管３７を通過して流れる方向に開いて、排気管３９
よシ大気に排気される。排気管４０は、切替バルブ２９
と貯蔵庫を接続している。４１．４２は切替バルブであ
シ、各々、貯蔵庫１と燃焼炉１２、冷却器１３と送風機
１４との間に設けられている。For example, when the adsorber 22 is performing an adsorption action and the adsorber 23 is performing a desorption action, the switching valves 28 and 29 are set in the direction in which the combustion gas flows through the inlet pipe 24, adsorber 22, and discharge pipe 26. Also, the switching valves 33 and 38 are
The outside air is supplied by the blower 32 to the introduction pipe 36, the adsorber 23,
The exhaust pipe 39 passes through the exhaust pipe 37 and opens in the flow direction.
It is exhausted to the atmosphere. The exhaust pipe 40 has a switching valve 29
and storage are connected. Reference numerals 41 and 42 indicate switching valves, which are provided between the storage 1 and the combustion furnace 12, and between the cooler 13 and the blower 14, respectively.
４４は送風機１４の風量を制御するコントローラーであ
り、貯蔵庫１内のガス濃度を検知するガスモニター４５
の信号によって風量は決定する。４６はチャンバーであ
シ、貯蔵庫１と切替パルプ４１０間の導入管１０に設け
られた容器で１、ガスモニター４６のサンプリングチュ
ーブ４７を接続している。４８は燃焼炉８からの燃焼ガ
ス温度を検知する温度検知手段であシ、前記触媒１２ａ
の上流で、更に燃焼炉８の下流に設けている。４９は燃
焼炉８に大気を導入する風路切替パルプである。６０は
貯蔵庫のガス雰囲気及び燃焼ガス温度等により、各部を
動作させる制御手段である。44 is a controller that controls the air volume of the blower 14, and a gas monitor 45 that detects the gas concentration in the storage 1.
The air volume is determined by the signal. Reference numeral 46 indicates a chamber, and a container 1 is provided in the introduction pipe 10 between the storage 1 and the switching pulp 410, and is connected to the sampling tube 47 of the gas monitor 46. 48 is a temperature detection means for detecting the temperature of the combustion gas from the combustion furnace 8;
It is provided upstream of the combustion furnace 8 and further downstream of the combustion furnace 8. 49 is an air path switching pulp that introduces the atmosphere into the combustion furnace 8. Reference numeral 60 denotes a control means that operates each part according to the gas atmosphere of the storage, the combustion gas temperature, etc.
以上のように構成された生鮮物貯蔵装置について、第１
図、第２図を用いてその動作を説明する。Regarding the fresh food storage device configured as described above, the first
The operation will be explained using FIG.
貯蔵庫１内の雰ｇ気は、最初Ｎ２ ｙ ｓ ％ 、 ０
２２１％であり、装置の運転を開始すると、風路切替パ
ルプ４９が大気を燃焼炉１２に導入するように切替わる
。また切替バルブ２８．３８は連結管１１と導入管２６
と排出管３７、排気管３９が連通ずるように切替わる。Initially, the atmosphere in storage 1 was N2ys%, 0
221%, and when the device starts operating, the air path switching pulp 49 is switched to introduce atmospheric air into the combustion furnace 12. In addition, the switching valves 28 and 38 are connected to the connecting pipe 11 and the inlet pipe 26.
The exhaust pipe 37 and the exhaust pipe 39 are switched so that they communicate with each other.
そして、送風機１４が運転されて風路切替バルブ４９か
ら導入された大気は燃焼炉１２内の着火用ヒータ２１で
加熱され固形燃料１９の燃焼に供され、Ｃ＋０２十Ｎ２
→Ｃｏ２＋Ｎ２の反応で燃焼ガヌは炭酸ガスｑ０２ と
窒素Ｎ２になって冷却器１３で冷却した後、連結管１１
により、切替バルブ４２、送風機１４を通過し、更に切
替バルブ２８、導入管２６、排出管３７、切替バルブ３
８、排気管３９を通シ、再び大気に放出される。そして
、触媒１２ａの上流に設けた燃焼ガス温度検知手段４８
が、開始１時間後触媒１２ａの浄化能力が１００％に十
分達する温度である５００℃を検知すると、風路切替パ
ルプ４９、切替バルブ２８．３８は燃焼炉８と吸着装置
９と貯蔵庫１が連通ずるように切替わる。この時前記燃
焼炉８内の固形燃料１９は全体が着火温度以上に加熱さ
れている。庫内空気は、送風機１４によって導入管１ｏ
よシチャンバー４６、切替バルブ４１を通って燃焼炉１
２へ導入され、固形燃料１９の燃焼に供される。Ｃ十〇
十Ｎ＋００２十Ｎ２の反応で燃焼ガスは炭酸ガスＣ０２
と窒素Ｎ２になって、冷却器１３で冷却した後、連結管
１１によシ、切替バルブ４２、送風機１４を通過し、更
に、切替バルブ２８、導入管２４を通過して吸着器２２
に入る。Then, the air blower 14 is operated and the air introduced from the air path switching valve 49 is heated by the ignition heater 21 in the combustion furnace 12 and used for combustion of the solid fuel 19.
→ Due to the reaction of Co2 + N2, the combustion gas becomes carbon dioxide gas q02 and nitrogen N2, and after being cooled in the cooler 13, the connecting pipe 11
, it passes through the switching valve 42, the blower 14, and further passes through the switching valve 28, the inlet pipe 26, the discharge pipe 37, and the switching valve 3.
8. It passes through the exhaust pipe 39 and is discharged to the atmosphere again. A combustion gas temperature detection means 48 provided upstream of the catalyst 12a
However, when a temperature of 500° C. is detected, which is the temperature at which the purification ability of the catalyst 12a reaches 100% one hour after the start, the air passage switching pulp 49 and the switching valves 28 and 38 connect the combustion furnace 8, adsorption device 9, and storage 1. Switch to communicate. At this time, the entire solid fuel 19 in the combustion furnace 8 is heated to a temperature higher than the ignition temperature. The air inside the refrigerator is supplied to the inlet pipe 1o by the blower 14.
The combustion furnace 1 passes through the storage chamber 46 and the switching valve 41.
2 and is used for combustion of solid fuel 19. In the reaction of C100N+0020N2, the combustion gas is carbon dioxide C02
After being cooled in the cooler 13, it passes through the connecting pipe 11, the switching valve 42, and the blower 14, and then passes through the switching valve 28 and the introduction pipe 24 to the adsorber 22.
to go into.
ここで炭酸ガスＣ０２は、吸着材３０によって吸着され
窒素Ｎ２だけが、排出管２６、切替バルブ２９を通過し
て排気管４０により、貯蔵庫１へ循環する。一定時間が
経過すると、燃焼ガスが循環する吸着器が、２２から２
３に切替わるべく、切替バルブ２８．２９が切替わシ、
切替バルブ２８、導入管２６を通過して吸着器２３に入
る。ここで再び炭酸ガスＣｏ２ は、吸着材３１によっ
て吸着され窒素Ｎ２だけが排出管２７、切替バルブ２９
を通過して排気管４０により貯蔵庫１へ循環する。Here, the carbon dioxide gas C02 is adsorbed by the adsorbent 30, and only the nitrogen N2 passes through the exhaust pipe 26 and the switching valve 29 and circulates to the storage 1 through the exhaust pipe 40. After a certain period of time, the adsorber through which the combustion gas circulates changes from 22 to 2.
3, the switching valves 28 and 29 are switched,
It passes through the switching valve 28 and the introduction pipe 26 and enters the adsorber 23. Here again, carbon dioxide gas Co2 is adsorbed by the adsorbent 31, and only nitrogen N2 is left in the exhaust pipe 27 and the switching valve 29.
and is circulated through the exhaust pipe 40 to the storage 1.
再び一定時間が経過すると吸着器２２．２３が切替わり
、交互に燃焼ガヌが循環する。After a certain period of time has elapsed again, the adsorbers 22 and 23 are switched, and the combustion gas is alternately circulated.
この間に吸着器２２．２３の中に充填された吸着材３０
．３１は、炭酸ガスＣ０２の吸着能力の限界に達し、燃
焼ガスの中の炭酸ガスＣ０２は吸着しきれなくな夛、排
気管４ｏを通って貯蔵庫１内に排気され、貯蔵庫１内の
炭酸ガスＣｏ２濃度は徐々に増加し始める。７６−の大
きさの貯蔵庫１で運転開始後約２時間の状態である。こ
の間にも、貯蔵庫１内の酸素０２濃度は、最初２１％よ
り減少し続ける。貯蔵庫１内のガス濃度を、酸素（０２
）＝６％、炭酸ｉ ｙ （ＣＯ２） ＝５ ％、窒素（
Ｎ２）＝ｅｏ％を所定の値とすると、貯蔵庫１内の炭酸
ガスが増加して６％に達したことを、ガスモニター４６
が、チャンバー４６内のガスサンプリングを行うことに
よって検知すると、炭酸ガス吸着装置９の脱着用の送風
機３２が運転され、吸着器内の吸着材の再生が開始され
る。例えば、吸着器２２が、燃焼ガスが循環して炭酸ガ
スＣｏ２ を吸着していると、吸着器２３は、送風機３
２によって外気が切替バルブ３３、導入管３５、排出管
２７を通過し、吸着材３１に送風されることによって炭
酸ガスＣＯ２が脱着され再生される。これが一定時間毎
に交互に行われるため、貯蔵庫１内の炭酸ガスＣｏ２濃
度は所定の５％を維持する。一方酸素ｏ２濃度は、その
間も燃焼に供せられているため、減少し続け、１０時間
後に所定の６チに達し、これをガスモニター４６が検知
し、炭酸ガス発生装置８及び炭酸ガス吸着装置９を停止
させる。これで、貯蔵庫１内が所定のガス濃度酸素（０
２）＝５％、炭酸ガス（Ｃｏ２）＝ｓチ、窒素（Ｎ２）
＝９０％となシ、貯蔵を開始する。酸素ｏ２濃度が所定
のｓ％に達したのを検知すると同時に、切替バルブ４１
．４２が、導入管１０．連結管４３．連結管１１を連通
ずるように切替わる。During this time, the adsorbent 30 filled in the adsorber 22, 23
．． 31 reaches the limit of its adsorption capacity for carbon dioxide C02, and the carbon dioxide C02 in the combustion gas cannot be adsorbed and is exhausted into the storage 1 through the exhaust pipe 4o. The concentration begins to gradually increase. This is the state of the storage 1, which has a size of 76 mm, and has been in operation for about 2 hours since the start of operation. During this time, the oxygen 02 concentration in the storage 1 continues to decrease from the initial 21%. The gas concentration in storage 1 was changed to oxygen (02
) = 6%, carbonic acid i y (CO2) = 5%, nitrogen (
If N2)=eo% is a predetermined value, the gas monitor 46 indicates that the carbon dioxide in the storage 1 has increased and reached 6%.
When this is detected by sampling the gas in the chamber 46, the blower 32 for desorption of the carbon dioxide adsorption device 9 is operated, and regeneration of the adsorbent in the adsorption device is started. For example, when the adsorber 22 is adsorbing carbon dioxide CO2 as combustion gas circulates, the adsorber 23 is adsorbed by the blower 3.
2, outside air passes through the switching valve 33, the inlet pipe 35, and the exhaust pipe 27, and is blown onto the adsorbent 31, whereby carbon dioxide gas CO2 is desorbed and regenerated. Since this is performed alternately at regular intervals, the concentration of carbon dioxide CO2 in the storage 1 is maintained at a predetermined 5%. On the other hand, the oxygen O2 concentration continues to decrease because it is being used for combustion during that time, and reaches the predetermined value of 6 after 10 hours, which is detected by the gas monitor 46, and the carbon dioxide gas generator 8 and carbon dioxide adsorption device Stop 9. Now, the inside of storage 1 reaches the predetermined gas concentration oxygen (0
2) = 5%, carbon dioxide (Co2) = s, nitrogen (N2)
= 90%, start storage. At the same time as detecting that the oxygen O2 concentration has reached a predetermined s%, the switching valve 41
．． 42 is the introduction tube 10. Connecting pipe 43. Switching is performed so that the connecting pipe 11 is communicated.
燃焼が完了して、切替バルブ４１．４２が、導入管１０
．連結管４３．連結管１１を連通ずるように切替わるこ
とによって、燃焼炉１２を含む糸路は遮断される。この
ためこの系路内は、酸素不足の状態となり、不完全燃焼
ガスが充満する。After the combustion is completed, the switching valves 41 and 42 switch to the inlet pipe 10.
．． Connecting pipe 43. By switching the connecting pipe 11 into communication, the yarn path including the combustion furnace 12 is cut off. As a result, this system becomes deficient in oxygen and is filled with incompletely combusted gas.
方、燃焼炉１２の温度は、燃焼が完了すると同時に遮断
されるので、温度は下がってくる。その温度を温度検知
手段４８で検知し、６００℃に達した時点から更に３時
間の時点で、燃焼炉１２の系路内の不完全燃焼ガスを装
置外に放出する。その動作を説明すると、６００℃を温
度検知手段４８で検知した時点から更に３時間経過する
と、切替バルブ４９が大気を燃焼炉１２系路に導入する
ように切替わる。また切替バルブ４２．２８．３８は燃
焼炉１２と連結管１１と導入管２６と排出管３７、排気
管３９が連通ずるように切替わる。そして、送風機１４
が運転されて、切替バルブ４９からは大気が導入され、
同時に燃焼炉１２内に充満していた不完全燃焼ガスを連
結管１１．導入管２６、排出管３７．排気管３９を通っ
て大気に放出する。一定時間上記動作を行ったあと、切
替バルブ４９，４２，２８．３８は再びもとの状態にも
どる。以後、一定時間毎に送風機１４を運転し、チャン
バー４６内のガスをガスモニター４６で検知する。貯蔵
庫１内に貯蔵している生鮮物の呼吸作用によって発生す
る炭酸ガスＣ０２が所定の６チを越えると炭酸ガス吸着
装置９が働き、所定の濃度になるまで炭酸ガスＣＯ２を
吸着する。この動作を説明すると、ガスモニター４６が
所定の濃度を越えたことを検知すると、送風機１４が運
転され、貯蔵庫１内のガスが導入管１０．切替バルブ４
１．連結管４３．切替バルブ４２．送風機１４゜連結管
１１．切替バルブ２８．導入管２４を通過して吸着器２
２に導入され、過剰の炭酸ガスＣｏ２が吸着材３ｏに吸
着されて、更に、排出管２６゜切替バルブ２９．排気管
４ｏを通過して、貯蔵庫１に循環する。一方吸着器２３
は、送風機３２によって外気が切替バルブ３３、導入管
３６、排気管２７を通過し、吸着材３１に送風されるこ
とによって炭酸ガスＣ０２が脱着され再生される。これ
が一定時間毎に交互に行われるため、貯蔵庫１内の炭酸
ガスＣ０２濃度は、所定の濃度にもどる。On the other hand, since the temperature of the combustion furnace 12 is shut off as soon as combustion is completed, the temperature decreases. The temperature is detected by the temperature detection means 48, and after three hours have elapsed since the temperature reached 600° C., the incomplete combustion gas in the system of the combustion furnace 12 is discharged to the outside of the apparatus. To explain the operation, when 3 hours have passed since the temperature detection means 48 detected 600° C., the switching valve 49 is switched to introduce the atmosphere into the combustion furnace 12 line. Further, the switching valves 42, 28, and 38 are switched so that the combustion furnace 12, the connecting pipe 11, the inlet pipe 26, the discharge pipe 37, and the exhaust pipe 39 are communicated with each other. And the blower 14
is operated, atmospheric air is introduced from the switching valve 49,
At the same time, the incomplete combustion gas filling the combustion furnace 12 is transferred to the connecting pipe 11. Inlet pipe 26, discharge pipe 37. It is discharged to the atmosphere through the exhaust pipe 39. After performing the above operation for a certain period of time, the switching valves 49, 42, 28, and 38 return to their original states. Thereafter, the blower 14 is operated at regular intervals, and the gas inside the chamber 46 is detected by the gas monitor 46. When carbon dioxide gas CO2 generated by the respiration of fresh food stored in storage 1 exceeds a predetermined value of 6, the carbon dioxide gas adsorption device 9 operates to adsorb carbon dioxide gas CO2 until a predetermined concentration is reached. To explain this operation, when the gas monitor 46 detects that a predetermined concentration has been exceeded, the blower 14 is operated and the gas in the storage 1 is pumped through the inlet pipe 10. Switching valve 4
1. Connecting pipe 43. Switching valve 42. Blower 14° connecting pipe 11. Switching valve 28. Pass through the introduction pipe 24 to the adsorber 2
2, excess carbon dioxide gas Co2 is adsorbed by the adsorbent 3o, and is further passed through the discharge pipe 26 and the switching valve 29. It passes through the exhaust pipe 4o and circulates to the storage 1. On the other hand, the adsorber 23
The outside air is passed through the switching valve 33, the inlet pipe 36, and the exhaust pipe 27 by the blower 32, and is blown onto the adsorbent 31, whereby carbon dioxide gas C02 is desorbed and regenerated. Since this is performed alternately at regular intervals, the carbon dioxide C02 concentration in the storage 1 returns to the predetermined concentration.
また、貯蔵中に貯蔵庫１内の酸素０２濃度が所定の濃度
６％以上になったことをガスモニター４６が検知すると
風路切替パルプ４９が大気を燃焼炉１２に導入するよう
に切替わる。また、切替バルブ２８．３８は連結管１１
と導入管２６と排出管３７、排気管３９が連通ずるよう
に切替わる。そして、風路切替パルプ４９から導入され
た大気は燃焼炉１２を通シ排気管３９から大気に放出さ
れながら固形燃料が燃焼していく。そして、触媒１２ａ
の上流の燃焼ガス温度検知手段４８が燃焼ガス温度５０
０℃を検知すると、風路切替パルプ４９、切替バルブ２
８．３８は燃焼炉８と吸着装置９と貯蔵庫１が連通ずる
ように切替わり、貯蔵庫１の酸素０２濃度が６％に達す
るまで燃焼し、５％に達すると切替バルブ４１．４２が
導入管１０゜連結管４３．連結管１１を連通ずるように
切替わり貯蔵に戻る。Further, when the gas monitor 46 detects that the oxygen 02 concentration in the storage 1 has reached a predetermined concentration of 6% or more during storage, the air path switching pulp 49 is switched to introduce atmospheric air into the combustion furnace 12. In addition, the switching valves 28 and 38 are connected to the connecting pipe 11.
Then, the introduction pipe 26, the discharge pipe 37, and the exhaust pipe 39 are switched so that they communicate with each other. Then, the atmosphere introduced from the air path switching pulp 49 passes through the combustion furnace 12 and is discharged to the atmosphere from the exhaust pipe 39, while the solid fuel is burned. And catalyst 12a
The combustion gas temperature detection means 48 upstream of the combustion gas temperature 50
When 0°C is detected, the air passage switching pulp 49 and the switching valve 2
8.38 switches so that the combustion furnace 8, adsorption device 9, and storage 1 are in communication with each other, and burns until the oxygen 02 concentration in the storage 1 reaches 6%, and when it reaches 5%, the switching valves 41 and 42 switch to the inlet pipe. 10° connecting pipe 43. The connecting pipe 11 is switched to open communication and returns to storage.
更に前に説明した動作と同様、燃焼炉１２の系路内の不
完全燃焼ガスを装置外に放出する動作を行う。Furthermore, in the same way as the previously described operation, an operation is performed to discharge the incompletely combusted gas in the system of the combustion furnace 12 to the outside of the apparatus.
また、生鮮物の呼吸作用によって不足してくる酸素（ｏ
２）が所定の６％以下になると、送風機３２によって外
気が貯蔵庫１に導入され補給される。In addition, oxygen (o
2) becomes less than a predetermined 6%, outside air is introduced into the storage 1 by the blower 32 and replenished.
導入経路は、送風機３２、切替バルブ３３、導入管３６
、排気管２７、切替バルブ２９、排気管のを通過し、貯
蔵庫１に導入される。The introduction route includes a blower 32, a switching valve 33, and an introduction pipe 36.
, the exhaust pipe 27, the switching valve 29, and the exhaust pipe, and is introduced into the storage 1.
次に貯蔵を終了し、貯蔵庫１内の生鮮物を取出すために
貯蔵庫１内のガスを換気する動作を説明する。Next, the operation of ventilating the gas in the storage 1 in order to finish storage and take out the perishables in the storage 1 will be explained.
制御盤（図示せず）に設けた換気スイッチ（図示せず）
をＯＮにすることによって送風機１４が運転され、貯蔵
庫１内のガスを、導入管１０．切替バルブ４１、連結管
４３、切替バルブ４２、連結管１１、切替バルブ２８、
導入管２６、排出管３７を通過して大気に放出される。Ventilation switch (not shown) on control panel (not shown)
The blower 14 is operated by turning on the gas in the storage 1 and the inlet pipe 10. Switching valve 41, connecting pipe 43, switching valve 42, connecting pipe 11, switching valve 28,
It passes through the introduction pipe 26 and the discharge pipe 37 and is released into the atmosphere.
同時に、送風機３２で外気を貯蔵庫１内に導入する。そ
の経路は、送風機３２、切替バルブ３３、導入管３４、
排出管２６、切替バルブ２９、排気管４０である。At the same time, outside air is introduced into the storage 1 by the blower 32. The route includes the blower 32, the switching valve 33, the introduction pipe 34,
These are a discharge pipe 26, a switching valve 29, and an exhaust pipe 40.
貯蔵庫１内のガスが外気と同等になったことをチャンバ
ー４６内のガスをガスモニター４６で検知して、送風機
１４．３２を停止し、切替バルブ２Ｂを導入管２４と連
通ずるように、切替バルブ３３を導入管３４と連通ずる
ように切替える。When the gas in the chamber 46 is detected by the gas monitor 46 to indicate that the gas in the storage 1 has become equal to the outside air, the blower 14.32 is stopped and the switching valve 2B is switched to communicate with the introduction pipe 24. The valve 33 is switched to communicate with the introduction pipe 34.
６０は、貯蔵庫１内に設けた気密袋で、気体透過性の低
い材料６１で形成している。６２は生鮮物である。この
ガス置換装置１によって前記貯蔵庫１内をガス置換して
０□５％、Ｃｏ２５％のガス濃度にするのに１０時間か
かる時の前記貯蔵庫１内のガス置換容積をｖｍ’とする
。前記貯蔵庫１内の全容積をＶｍ’とする。従って貯蔵
庫１内のガス濃度を０６％、Ｃｏ２ ｓ％に１０時間で
するためには貯蔵庫１内の生鮮物の貯蔵量を（Ｖ−ｖ）
ｍ’にする必要がある。しかし、生鮮物の貯蔵量がこの
容積に達しない時は、前記気密袋６０に空気を充填して
ふくらましくＶ−ｖ）−にすることによっって、０６％
、Ｃｏ２６％を１０時間で到達させることかできる。更
に、この状態で冷却装置７が運転・停止することによっ
て生ずる圧力変動をこの気密袋が伸縮することで貯蔵庫
内の圧力を一定に保持でき貯蔵庫の気密度の経年劣化は
防止できる。Reference numeral 60 denotes an airtight bag provided in the storage 1, and is made of a material 61 with low gas permeability. 62 is fresh food. Let vm' be the gas replacement volume in the storage 1 when it takes 10 hours to replace the gas in the storage 1 with the gas replacement device 1 to reach a gas concentration of 0□5% and Co25%. The total volume inside the storage 1 is assumed to be Vm'. Therefore, in order to reduce the gas concentration in storage 1 to 0.6% and CO2 s% in 10 hours, the amount of fresh food stored in storage 1 must be (V-v).
It is necessary to make it m'. However, when the amount of stored perishables does not reach this volume, the airtight bag 60 is filled with air to make it fluffy (V-v)-.
, Co26% can be reached in 10 hours. Furthermore, by expanding and contracting the airtight bag to cope with pressure fluctuations caused by operating and stopping the cooling device 7 in this state, the pressure inside the storage can be kept constant and deterioration of the airtightness of the storage can be prevented over time.
発明の効果
以上のように本発明は、貯蔵庫内に設け、気体の透過性
の低い材料で形成し、かつ、一端を貯蔵庫の壁面を貫通
させ外気に開口させた伸縮可能な気密袋を備えたことに
よシ、貯蔵量に依存することなく一定時間後に所定のガ
ス濃度に到達でき、かつ、貯蔵庫内の冷却装置の運転・
停止によって生ずる圧力変動に対し気密袋が伸縮するこ
とによって貯蔵庫内の圧力は一定に保持され貯蔵庫の気
密度の経年劣化は防止できる。Effects of the Invention As described above, the present invention includes an expandable and retractable airtight bag that is installed inside a storage, is made of a material with low gas permeability, and has one end that penetrates the wall of the storage and opens to the outside air. In particular, it is possible to reach a predetermined gas concentration after a certain period of time without depending on the storage amount, and the operation of the cooling system in the storage
By expanding and contracting the airtight bag in response to pressure fluctuations caused by the stoppage, the pressure inside the storage is kept constant and deterioration of the airtightness of the storage over time can be prevented.
第１図は本発明の一実施例における生鮮物貯蔵装置の構
成図、第２図は同装置による庫内ガス成分の変化図、第
３図は従来の生鮮物貯蔵装置の系統図である。
１・・・・・・貯蔵庫、１・・・・・・ガス置換装置、
５ｏ・・・・・・気密袋、６１・・・・・・気密透過性
の低い材料。FIG. 1 is a block diagram of a fresh food storage device according to an embodiment of the present invention, FIG. 2 is a diagram of changes in gas components in the refrigerator according to the same device, and FIG. 3 is a system diagram of a conventional fresh food storage device. 1...Storage, 1...Gas replacement device,
5o... Airtight bag, 61... Material with low airtight permeability.
Claims (1)
置換するガス置換装置と、前記貯蔵庫内に設け気体透過
性の低い材料で形成し、かつ、一端を前記貯蔵庫の壁面
を貫通し外気に開口させた伸縮可能な気密袋とを備えた
ことを特徴とする生鮮物貯蔵装置。a storage for storing perishables; a gas exchange device for replacing the air in the storage with gas; and a gas exchange device installed in the storage and made of a material with low gas permeability, and having one end penetrated through the wall of the storage to allow air to pass through the outside air. A fresh food storage device comprising an open expandable airtight bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1025041A JPH02203716A (en) | 1989-02-03 | 1989-02-03 | Apparatus for storing perishables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1025041A JPH02203716A (en) | 1989-02-03 | 1989-02-03 | Apparatus for storing perishables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02203716A true JPH02203716A (en) | 1990-08-13 |
Family
ID=12154828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1025041A Pending JPH02203716A (en) | 1989-02-03 | 1989-02-03 | Apparatus for storing perishables |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02203716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657185U (en) * | 1993-01-28 | 1994-08-09 | 伸剛 長内 | Storage facilities for fruits and vegetables |
| JPH11101720A (en) * | 1997-09-25 | 1999-04-13 | Ohbayashi Corp | Gas-capturing device |
-
1989
- 1989-02-03 JP JP1025041A patent/JPH02203716A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0657185U (en) * | 1993-01-28 | 1994-08-09 | 伸剛 長内 | Storage facilities for fruits and vegetables |
| JPH11101720A (en) * | 1997-09-25 | 1999-04-13 | Ohbayashi Corp | Gas-capturing device |
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